Doctor insights on:
I Have A Pain Under My Left Ear And Under The Jaw Bone To Touch

1

TMJ:
Temporomandibular joint dysfucntion/pain is a common cause of ear pain. If you tend to grind your teeth or have poor occlusion due to missing teeth or some anatomical variant, you may be especially prone to develop the dysfunction of this joint. There may be other types of problems causing similar symtpoms, though.
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Bone is a living growing tissue made mostly of collagen (protein that provides soft framework) & the mineral calcium phosphate that adds strength & hardens the framework. Two types of bone are found in the body; cortical (dense compact outer layer) & trabecular (makes up inner layer, is spongy honeycomb-like structure).
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4

Otolaryngologist:
This could be an enlarged salivary gland caused by a blockage in a duct. Also a solitary enlarged lymph gland or cyst. Have an otolaryngologist examine you and advise you.
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5

Yes:
It could be "just an infection", but this should be evaluated by your doctor and treated appropriately. If you were concerned that this lump might be a cancer that seems improbable, but a doctor needs to see it and feel it to be certain what it is likely to be due to.
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Pleural fremitus is a palpable vibration of the wall of the thorax caused by friction between the parietal and visceral pleura of the lungs. See pleural friction rub for the auditory analog of this sign.
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